Constant of Proportionality

Which of the following is the correct formula for finding the constant of proportionality?

• k = x/y

• k = y/x

• y = k/x

• x = k/y

Tags

CCSS.7.RP.A.2B

The constant of proportionality is also the unit rate.

• True

• False

Tags

CCSS.7.RP.A.2B

The constant of proportionality for the graph above is 1.

• True

• False

Tags

CCSS.7.RP.A.2B

Write an equation for the proportional relationship in the table.

• y=18x

• y=18.50x

• y=22.50x

• y=22x

Tags

CCSS.7.RP.A.2C

Janet used 155 beads to create 5 necklaces.  What is the constant of proportionality?  (How many beads did she use to make each necklace?)

• 31

• 51

• 33

Tags

CCSS.7.RP.A.2B

Does this graph show a proportional relationship?

• yes

• no

• you cannot tell

Tags

CCSS.7.RP.A.2D

Write and equation in the form of y=kx for a line that passes through the ordered pair (3,9).

• y=1/3X

• y=6x

• y=3x

• y=9x

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

• $8 per pound

• $5 per pound

• $35 per pound

• 0.125 pounds per dollar

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

What is the constant of proportionality in the table?

Tags

CCSS.7.RP.A.2B

What is the constant of proportionality in this table?

Tags

CCSS.7.RP.A.2B